CN210301445U

CN210301445U - Foldable self-pressure oxygen bag pad stretcher

Info

Publication number: CN210301445U
Application number: CN201920296171.1U
Authority: CN
Inventors: 杨华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-09
Filing date: 2019-03-09
Publication date: 2020-04-14
Anticipated expiration: 2029-03-09

Abstract

A foldable self-pressurizing oxygen bag stretcher comprising: oxygen bag pad, oxygen bag, valve, middle separation seam, side separation seam, air cushion brace, connecting canvas, stretcher main bar, lifting handle, sailcloth bag, main bar butt joint hinge, pin, cross arm hinge shell, pin screw, movable cross arm, brace ear, brace, etc.; the method is characterized in that: the length and the width of the oxygen bag pad are based on the space in the stretcher, the oxygen bag pad is made of pressure-resistant cloth-clamping rubber materials and is divided into four small oxygen bags, each oxygen bag is provided with a valve, canvas is fully paved above the oxygen bag pad, and the oxygen bag pad can walk after being folded; the middle of each stretcher main bar is connected by a hinge, so that the stretcher can bear bending and compressive stress and can be folded; the movable cross arm is arranged on the cross arm hinge shell, so that the stretcher is convenient to remove and assemble, and the stretcher can walk on the back; the oxygen bag pad is sleeved in the middle of the main rod of the stretcher, the main rod of the stretcher is combined and scattered when the oxygen bag pad is used, the oxygen bag pad is unfolded and placed into the canvas bag, the oxygen pipe is sleeved on the valve and the nostril oxygen supply pipe of the sick and wounded for supplying oxygen, and half of the oxygen is pressed by the sick and wounded and can still supply oxygen normally.

Description

Foldable self-pressure oxygen bag pad stretcher

Technical Field

A foldable self-pressure oxygen bag pad stretcher belongs to the field of medical apparatus and instruments technology.

Background

The stretcher in the medical rescue field is various, the foldable stretcher can be folded to be convenient for vehicle transportation or manual shoulder and back to be difficult to see, particularly, when a serious injury patient needs to be first treated, an oxygen bag needs to be taken additionally, oxygen is supplied to the patient in the transportation process, a serious injury patient needs to be transported by three to five persons, the foldable stretcher is particularly needed to be folded when the serious injury patient is first treated in a battlefield or after an earthquake, two persons can transport the serious injury patient in the first treatment on a path without a road conveniently, precious stretcher capable of supplying oxygen to the serious injury patient through oxygen is needed, and the life saving time of the serious injury patient can be prolonged.

Disclosure of Invention

In order to solve the problems, the invention designs a foldable self-pressing oxygen bag pad stretcher which is used for solving the problem that a person can walk on the back after the stretcher is folded, and the oxygen bag pad carries oxygen to supply oxygen to a serious sick and wounded person.

In order to solve the above technical problem, a foldable self-pressure oxygen bag pad stretcher comprises: the oxygen bag comprises an oxygen bag pad, a No. 1 oxygen bag, a No. 2 oxygen bag, a No. 3 oxygen bag, a No. 4 oxygen bag, a No. 1 oxygen bag valve, a No. 2 oxygen bag valve, a No. 3 oxygen bag valve, a No. 4 oxygen bag valve, a medial parting seam of the oxygen bag pad, a lateral parting seam of the oxygen bag pad, the oxygen bag valve, an air cushion brace, the oxygen bag, a connecting canvas, a stretcher main bar, a lifting handle, a sailing bag of the oxygen bag pad, a main bar butt joint double-pin shaft hinge, a hinge pin, a main bar movable cross arm hinge shell, a cross arm pin screw, a cross arm movable hinge support, a movable cross arm, a brace ear, a stretcher brace and a binding strap ear.

The method is characterized in that: the oxygen bag cushion has the length of 1900mm and the width of 650mm, the width of 550mm after oxygen is filled is not less than 500 mm and 550mm, and a plurality of groups of cloth strip ropes are additionally arranged on four sides of the oxygen bag cushion, so that the oxygen bag cushion can be conveniently bundled on a stretcher.

The oxygen bag pad is made of cloth-sandwiched rubber material, and the highest inflation pressure resistance value after processing is not less than 1.5-2kg/cm²The range of (1).

The oxygen bag pad is divided into four independent small oxygen bags by a method of pressing and bonding the separation seams, and each oxygen bag is upwards provided with four oxygen bag valves with air pipe inserting joints, which are respectively as follows: no. 1 oxygen bag valve, No. 2 oxygen bag valve, No. 3 oxygen bag valve, No. 4 oxygen bag valve, the oxygen bag valve can not leak gas after being closed,

the oxygen bag valve is a general name of four small oxygen bag valves.

The oxygen bag 1 and the oxygen bag 3 are integrated, the oxygen bag 2 and the oxygen bag 4 are integrated, the upper part of the oxygen bag cushion is fully paved with connecting canvas, so that the pressure to the four oxygen bags is balanced when a human body presses downwards, two blocks can be folded in half after oxygen filling, the cloth binding ropes left at the two ends of the oxygen bag cushion are good, and one person puts the oxygen bag cushion on the shoulders and can walk by carrying on the back.

The middle of the oxygen bag pad is pressed and adhered with a middle separation seam of the oxygen bag pad, the No. 1 oxygen bag and the No. 2 oxygen bag are completely separated from the No. 3 oxygen bag and the No. 4 oxygen bag, the middle of the No. 1 oxygen bag and the No. 2 oxygen bag and the No. 3 oxygen bag and the No. 4 oxygen bag are respectively pressed and adhered with an edge separation seam of the oxygen bag pad, and the ends of the edge separation seams of the oxygen bag pad are respectively provided with a space with the length of 5-10mm, so that the spaces at the two sides of the edge separation seam of the oxygen bag pad in the middle of the oxygen bag.

Four air cushion straps are mounted on the bottom surface of the oxygen bag pad, after the oxygen bag pad is folded upwards in half, two groups of cloth ropes at the end are bundled, and two air cushion straps are respectively reserved on two sides, so that the oxygen bag pad does not need to be put down when people are back to back, and people can be changed back to back.

The two stretcher main bars are made of aluminum alloy thick-walled pipes or stainless steel pipes with the diameter of 40-45mm, the bending stress resistance of the stretcher main bars is required to be not less than 100 and 120kg, the middle of each single bar is connected with a double-pin-shaft hinge through the main bars in a butt joint mode, the stretcher main bars can move after being riveted by hinge pins, the designed bending stress can be borne downwards, and the middle of each single bar can be bent upwards to fold the two ends.

The length of the inflated oxygen bag cushion can be put down in the space between the front and the rear movable cross arms, and the width of the inflated oxygen bag cushion can be put down in the space between the two stretcher main bars.

The length of the lifting handle is 35-40cm, and the screws are respectively arranged below the ends of the lifting handle, so that the rope placed on the shoulder cannot slip when a person in front lifts an uphill slope and a person behind the lifting downhill slope, and accidents caused by the fact that the rope slips from the ends of the lifting handle can be prevented.

Two main bar movable cross arm hinge shells are respectively installed at the root parts of the two main bars of the stretcher, which are close to the lifting handle, and are fixed on the main bars of the stretcher by rivets and are additionally welded with triangular cross arm movable hinge supports, so that the stability of the movable cross arms can be improved, one ends of the movable cross arms are inserted into the semi-open main bar movable cross arm hinge shells, one ends of the movable cross arms are nailed into the main bar movable cross arm hinge shells by cross arm pins, and the movable cross arms can be tightly attached to the sides of the main bars of the stretcher after being bent towards the middle direction, so that the main bars can be conveniently folded; the other end of the movable cross arm on the opposite side stretcher main bar is arranged in the main bar movable cross arm hinge shell at the other end and is locked by cross arm pin screws, the cross arm pin screws at the two ends can be detached when the movable cross arm hinge shell is unfolded, the two stretcher main bars can be separated, the movable cross arms are respectively folded, then the stretcher main bars and the oxygen bag pad canvas bag are folded from the middle, and then a binding rope is used for bundling the movable cross arms.

The two stretcher main bars are fixedly connected with one end of the movable cross arm by hinge pins in the hinge shells of the movable cross arm of the main bars respectively, the other ends of the movable cross arm are fixed by removable cross arm pin screws, the movable cross arm is convenient to withdraw and assemble, four binding belt lugs are respectively arranged on the two stretcher main bars at proper positions, belts are arranged on the binding belt lugs, and when a wounded person is put on the stretcher to go, the wounded person is bound by the binding belts, so that the stretcher is prevented from rolling away from the stretcher under special conditions.

The upper part and the lower part of the front half root and the rear half root of one stretcher rod are respectively provided with a brace ear, the brace ears are respectively provided with two stretcher braces, and when the foldable stretcher is folded, a person can walk on the back by using the two stretcher braces.

An oxygen bag pad sailcloth bag is arranged between the two stretcher main bars in a penetrating mode, the length and the width of the oxygen bag pad sailcloth bag are determined according to the length and the width of the oxygen bag pad after oxygen filling can be placed in the oxygen bag pad sailcloth bag, the depth of the oxygen bag pad sailcloth bag is determined according to the height of the oxygen bag pad after oxygen filling, when a wounded person is placed on the oxygen bag pad sailing device to lift, half of the wounded person is below the stretcher main bar, and half of the wounded person is more suitable above the stretcher main bar.

The long edge of the oxygen bag pad sailcloth bag is curled into a circular stretcher main rod sleeve which is sleeved in the middle of the stretcher main rod, the oxygen bag pad sailcloth bag faces downwards, two groups of cloth strip ropes are respectively arranged at the end heads, and the two groups of cloth strip ropes are tied on the movable cross arm.

When the foldable self-pressing oxygen bag pad stretcher is operated by two persons, one person carries the oxygen bag pad full of oxygen, and the other person carries the stretcher main lever combination, after the stretcher main lever combination arrives at a destination, the stretcher main lever combination is firstly scattered, the two movable cross arms of the stretcher main levers are respectively pulled open, the other ends of the movable cross arms are respectively inserted into hinge shells of the movable cross arms of the other main lever, pin screws of the cross arms are inserted, and then the movable cross arms are locked by fishtail nuts.

And unfolding the oxygen bag pad, putting the oxygen bag pad into a canvas bag of the oxygen bag pad in the middle of the stretcher, bundling the canvas bag with the main bar of the stretcher, and finishing the assembly.

Sleeving an oxygen pipe on an oxygen bag valve, connecting the other end of the oxygen pipe with a nostril oxygen supply pipe of the sick and wounded, opening a regulating valve to supply oxygen to the sick and wounded, changing another oxygen bag when one bag of oxygen is used for half, changing the first used oxygen bag again when the four bags are used for half, and pushing down the oxygen bag; the half-bag oxygen is pressed by the body of the patient, so the oxygen bag can still maintain higher air pressure and can still supply oxygen normally.

A foldable self-pressure oxygen bag pad stretcher has the following progress.

The oxygen bag cushion is pressed by the weight of the patient, so that higher air pressure can be maintained, oxygen can be supplied normally, and secondary damage to the patient caused by falling can be reduced due to low air pressure in the oxygen cushion.

Before use, the oxygen bag cushion does not need to be filled with oxygen with overpressure, because people press on the oxygen bag cushion, the oxygen bag cushion only needs to be filled with oxygen without pressurization, and the wounded and the sick can feel comfortable when walking on the oxygen bag cushion.

The volume of the folded stretcher is reduced, and the aluminum rod stretcher has light weight and is convenient to carry.

Because the oxygen bag is divided into four small oxygen bags, if one oxygen bag is damaged, the oxygen bag has three oxygen bags, and the oxygen bag has high safety factor, is particularly suitable for battlefield rescue, and is also suitable for lifting on mountainous roads, ascending roads and descending roads.

Due to the adoption of the foldable type, the foldable type lifesaving bed can be unfolded quickly and folded conveniently, can be operated and used by only two people, has high use efficiency and wide range, and can be used in any rescue occasions.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a schematic front view of an oxygen bag pad according to the present invention.

FIG. 2 is a schematic side view of the oxygen bag panel of the present invention.

Fig. 3 is a schematic side view of the main shaft of the stretcher of the present invention.

Fig. 4 is a front view of the main shaft assembly of the stretcher of the present invention.

In the drawings: a foldable self-pressurizing oxygen bag stretcher comprising: 1. the oxygen bag comprises an oxygen bag pad, a No. 2.1 oxygen bag, a No. 3.2 oxygen bag, a No. 4.3 oxygen bag, a No. 5.4 oxygen bag, a No. 6.1 oxygen bag valve, a No. 7.2 oxygen bag valve, a No. 8.3 oxygen bag valve, a No. 9.4 oxygen bag valve, a No. 10 oxygen bag pad middle partition seam, a No. 11 oxygen bag pad edge partition seam, a No. 12 oxygen bag valve, a No. 13 air cushion brace, a No. 14 oxygen bag, a No. 15 connecting canvas, a No. 16 stretcher main bar, a No. 17 lifting handle, a No. 18 oxygen bag pad canvas bag, a No. 19 main bar butt joint double-pin hinge, a No. 20 hinge pin, a No. 21 main bar movable cross arm hinge shell, a No. 22 cross arm pin, a No. 23 cross arm pin screw, a No. 24 cross arm movable hinge support, a No. 25 movable cross arm, a No. 26 brace ear, a No. 27 stretcher and a.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

A foldable self-pressurizing oxygen bag stretcher comprising: an oxygen bag pad 1, an oxygen bag No. 12, an oxygen bag No. 3, an oxygen bag No. 4, an oxygen bag No. 1, an oxygen bag valve No. 6, an oxygen bag No. 2, an oxygen bag No. 3, an oxygen bag valve No. 4, an oxygen bag pad middle gap 10, an oxygen bag pad edge gap 11, an oxygen bag valve 12, an air cushion brace 13, an oxygen bag 14, a connecting canvas 15, a stretcher main bar 16, a lifting handle 17, an oxygen bag pad canvas 18, a main bar butt joint double-pin hinge 19, a hinge pin 20, a main bar movable cross arm hinge shell 21, a cross arm pin 22, a cross arm pin screw 23, a cross arm movable hinge support 24, a movable cross arm 25, a brace ear 26, a stretcher brace 27 and a binding belt ear 28.

The oxygen bag cushion 1 has the length of 1800-650 mm, the width of 550-550 mm after oxygen is filled, and the four sides are respectively provided with a plurality of groups of cloth strip ropes, so that the oxygen bag cushion can be conveniently bundled on a stretcher.

The oxygen bag pad 1 is made of cloth-sandwiched rubber material, and the highest inflation pressure resistance value after processing is not less than 1.5-2kg/cm²The range of (1).

The oxygen bag pad 1 is divided into four independent small oxygen bags 14 by a method of pressing and bonding a separation seam, each oxygen bag 14 is upwards provided with four oxygen bag valves 12 with air pipe inserting connectors, and the four oxygen bag valves are respectively as follows: no. 1 oxygen bag valve 6, No. 2 oxygen bag valve 7, No. 3 oxygen bag valve 8, No. 4 oxygen bag valve 9, can not leak gas after oxygen bag valve 12 closes, and oxygen bag valve 12 is the collective name of four little oxygen bag valves.

No. 1 oxygen bag 2 and No. 3 oxygen bag 4 are as an organic whole, No. 2 oxygen bag 3 and No. 4 oxygen bag 5 are as an organic whole, and the top of oxygen bag pad is whole to be covered with connecting canvas 15, and the equilibrium is to the pressure of four oxygen bags when being convenient for the human body to push down, can come back two bold fifty percent discount again after oxygenating, and the bundle is good with the cloth rope bundle that the oxygen bag pad end was left, and one person puts the oxygen bag pad on both shoulders, is carrying on the back and can walk.

The middle of the oxygen bag pad 1 is pressed and adhered with an oxygen bag pad middle separation seam 10, the No. 1 oxygen bag 2 and the No. 2 oxygen bag 3 are completely separated from the No. 3 oxygen bag 4 and the No. 4 oxygen bag 5, the No. 1 oxygen bag 2 and the No. 2 oxygen bag 3 are respectively adhered and pressed with an oxygen bag pad side separation seam 11 with the No. 3 oxygen bag 4 and the No. 4 oxygen bag 5, and the ends of the oxygen bag pad side separation seam 11 in the middle of the oxygen bag 14 are respectively provided with a space with the length of 5-10mm, so that the two spaces of the oxygen bag pad side separation seam 11 are communicated.

Four air cushion straps 13 are mounted on the bottom surface of the oxygen bag cushion 1, after the oxygen bag cushion 1 is folded upwards, two groups of cloth ropes at the end are bundled, and the two air cushion straps 13 respectively reserved on two sides of the oxygen bag cushion are convenient to change people back to back without putting down the oxygen bag cushion 1.

The two stretcher main bars are made of aluminum alloy thick-walled tubes or stainless steel tubes with the diameter of 40-45mm, the stress of the stretcher main bars 16 or the stainless steel tubes for resisting bending and compression is not less than 100-120kg, the middle of each single tube is connected by a main bar butt joint double-pin shaft hinge 19, the main bars 16 can move after being riveted by hinge pins 20 and can bear the designed bending-resistant pressure downwards, and the middle can be bent upwards to fold the two ends.

The space between the front and rear movable cross arms 25 is defined by the length of the inflated oxygen bag mattress 1 which can be laid down, and the width between the two stretcher main bars 16 is also defined by the width of the inflated oxygen bag mattress 1 which can be laid down.

The length of the lifting handle 17 is 35-40cm, and a screw is arranged below the end of the lifting handle 17, so that a rope placed on a shoulder can not slip when a front person lifts an uphill slope and a rear person lifts a downhill slope, and accidents caused by the slipping of the rope from the end of the lifting handle can be prevented.

Two main bar movable cross arm hinge shells 21 are respectively installed at the root parts of the two main bar stretcher 16 close to the lifting handle 17, the main bar movable cross arm hinge shells 21 are fixed on the main bar stretcher 16 by rivets and are additionally welded with triangular cross arm movable hinge supports 24, so that the stability of the movable cross arm 25 can be improved, one end of the movable cross arm 25 is inserted into the semi-open main bar movable cross arm hinge shell 21, one end of the movable cross arm 25 is nailed in the main bar movable cross arm hinge shell 21 by a cross arm pin 22, and the semi-open main bar movable cross arm hinge shell can be bent towards the middle direction and then is clung to the side of the main bar stretcher 16, so that a binding piece can be conveniently collected; the other end of the movable cross arm 25 on the stretcher main bar 16 at the opposite side is arranged in the main bar movable cross arm hinge shell 21 at the other end and is locked by cross arm pin screws 23, the cross arm pin screws 23 at the two ends can be detached when the main bar movable cross arm hinge shell is unfolded, the two stretcher main bars 16 can be separated and the movable cross arms 25 can be respectively folded, then the stretcher main bars 16 and the oxygen bag pad sailcloth bag 18 are folded from the middle and then bundled by ropes.

Respectively with hinge pin 22 fixed connection activity cross arm 25 one end in main bar activity cross arm hinge shell 21 on two stretcher mobile jib 16, the other end all is fixed by removing cross arm pin screw 23, conveniently withdraws and assembles, installs four tight belt ear 28 respectively at suitable position value on two stretcher mobile jib 16, install the belt on the tight belt ear 28, put to go to back when the sick and wounded and tie up the people with tight belt, prevent to roll off the stretcher under the special circumstances.

The upper and lower parts of the front half root and the rear half root of one stretcher main bar 16 are respectively provided with a brace ear 26, the brace ears 26 are respectively provided with two stretcher braces 27, and when the foldable stretcher is folded, the user can walk on the back by using the two stretcher braces 27.

An oxygen bag pad sailcloth bag 18 is arranged between the two main poles 16 of the stretcher in a penetrating mode, the length and the width of the oxygen bag pad sailcloth bag 18 are determined according to the length and the width of the oxygen bag pad 1 after oxygen filling can be placed in the oxygen bag pad sailcloth bag, the depth is determined according to the height of the oxygen bag pad 1 after oxygen filling, when a wounded person is placed on the oxygen bag pad sailing area, half of the wounded person is below a main bar of the stretcher, and the half of the wounded person is more suitable above the main bar of the stretcher.

The long edge of the oxygen bag pad sailcloth bag 18 is curled into a circular stretcher main rod sleeve which is sleeved in the middle of the stretcher main rod 16, the oxygen bag pad sailcloth bag 18 faces downwards, two groups of cloth strip ropes are respectively arranged at the end heads, and the two groups of cloth strip ropes are tied on the movable cross arm 25.

When the foldable self-pressing oxygen bag pad stretcher is operated by two persons, the oxygen bag pad 1 with the back filled with oxygen is combined with the stretcher main lever 16, after the stretcher main lever 16 is combined and scattered, the movable cross arms 25 of the two stretcher main levers 16 are respectively pulled open, the other ends of the movable cross arms 25 are respectively inserted into the hinge shells 21 of the movable cross arms of the other main lever, the pin screws 23 of the cross arms are inserted, and then the tail nuts are used for locking.

Unfolding the oxygen bag pad 1, putting the oxygen bag pad 1 into a canvas bag 18 of the oxygen bag pad in the middle of the stretcher, and completing the assembly.

Sleeving an oxygen pipe on an oxygen bag valve 12, connecting the other end of the oxygen pipe with a nostril oxygen supply pipe of the sick and wounded, opening a regulating valve to supply oxygen to the sick and wounded, changing another oxygen bag when one bag of oxygen is used for half, changing the first used oxygen bag again when the four bags are used for half, and pushing down the oxygen bag; the half bag of oxygen can still maintain higher air pressure and can still supply oxygen normally because the wounded and sick people press the body of the half bag of oxygen.

Claims

1. A foldable self-pressurizing oxygen bag stretcher comprising: the oxygen bag comprises an oxygen bag pad, a No. 1 oxygen bag, a No. 2 oxygen bag, a No. 3 oxygen bag, a No. 4 oxygen bag, a No. 1 oxygen bag valve, a No. 2 oxygen bag valve, a No. 3 oxygen bag valve, a No. 4 oxygen bag valve, a median septum of the oxygen bag pad, a septum of the oxygen bag pad edge, an oxygen bag valve, an oxygen cushion brace, an oxygen bag, a connecting canvas, a stretcher main bar, a lifting handle, an oxygen bag pad canvas bag, a main bar butt joint double-pin shaft hinge, a hinge pin, a main bar movable cross arm hinge shell, a cross arm pin screw, a cross arm movable hinge support, a movable cross arm, a brace ear, a stretcher brace and a binding belt ear; the method is characterized in that: the length and the width of the oxygen bag pad are based on the space in the stretcher, and a plurality of groups of cloth strip ropes are respectively arranged on the four sides of the oxygen bag pad, so that the oxygen bag pad can be conveniently bundled on the stretcher; the oxygen bag pad is made of pressure-resistant cloth-clamping rubber materials, the oxygen bag pad is divided into four independent small oxygen bags by a method of pressing and sticking separation seams, and each oxygen bag is upwards provided with four oxygen bag valves with air pipe inserting connectors, which are respectively as follows: the oxygen bag valve 1, the oxygen bag valve 2, the oxygen bag valve 3 and the oxygen bag valve 4 are not air-tight after being closed; the number 1 oxygen bag and the number 3 oxygen bag are integrated, the number 2 oxygen bag and the number 4 oxygen bag are integrated, canvas is fully paved above an oxygen bag cushion, the pressure of the four oxygen bags can be balanced, two large blocks can be folded over after oxygen charging, the two large blocks can be bundled by a cloth strip rope, and a person can walk on the back; the middle of the oxygen bag pad is pressed and adhered with a middle isolation seam of the oxygen bag pad, the No. 1 oxygen bag and the No. 2 oxygen bag are completely isolated from the No. 3 oxygen bag and the No. 4 oxygen bag, the middle of the No. 1 oxygen bag and the No. 2 oxygen bag and the No. 3 oxygen bag and the No. 4 oxygen bag are respectively pressed and adhered with an edge isolation seam of the oxygen bag pad, and the ends of the edge isolation seams of the oxygen bag pad are respectively provided with a space with the length of 5-10mm, so that the spaces at the two sides of the edge isolation seam of the oxygen bag pad in the middle of each oxygen bag are; the bottom surface of the oxygen bag pad is provided with four air cushion braces, after the oxygen bag pad is folded upwards in half, two groups of cloth straps at the end are bundled, and two air cushion braces are respectively reserved at two sides, so that the oxygen bag pad does not need to be put down when the back of a person is conveniently replaced, and the person can be replaced back to back; the two stretcher main bars are made of aluminum alloy thick-walled pipes or stainless steel pipes, the middle of each single stretcher main bar is connected with a double-pin-shaft hinge through the main bar in a butt joint mode, after the stretcher main bars are riveted tightly through hinge pins, the stretcher main bars can move and bear the designed bending-resistant pressure downwards, the middle of each stretcher main bar can be bent upwards, and the two ends of each stretcher main bar are folded and folded; the length and the width of the space between the front movable cross arm and the rear movable cross arm can be determined according to the fact that the inflated oxygen bag cushion can be put down, and an anti-skid screw is arranged below the end head of the lifting handle, so that accidents caused by the fact that a strap rope slips off from the end head of the lifting handle are prevented; two main bar movable cross arm hinge shells are respectively installed at the root parts of the two main bars of the stretcher, which are close to the lifting handle, and are fixed on the main bar of the stretcher by rivets and are additionally welded with triangular cross arm movable hinge supports; the other end of the movable cross arm on the opposite side stretcher main bar is arranged in a main bar movable cross arm hinge shell at the other end, is locked by cross arm pin screws, and can be folded from the middle together with the oxygen bag pad canvas bag after being unfolded and then bundled by ropes; the two stretcher main bars are fixedly connected with one end of the movable cross arm by hinge pins in the hinge shells of the movable cross arm of the main bars respectively, the other ends of the movable cross arms are fixed by removable cross arm pin screws, so that the stretcher main bars are convenient to withdraw and assemble, four belt binding lugs are respectively arranged on the two stretcher main bars, a belt is arranged on the belt binding lugs, and a wounded person is bound by the belt after being put on the stretcher main bars; the upper part and the lower part of the front half root and the rear half root of one stretcher rod are respectively provided with a brace ear, the brace ears are respectively provided with two stretcher braces, and when the foldable stretcher is folded, the user can walk on the back by using the two stretcher braces; an oxygen bag pad canvas bag is arranged between the two stretcher main bars in a penetrating way, the oxygen bag pad is put into the oxygen bag pad canvas bag, when the sick and wounded are put on the oxygen bag pad canvas bag to lift and walk, half of the body is below the stretcher main bars, and the half of the body is more proper above the stretcher main bars; the long edge of the oxygen bag pad sailcloth bag is curled into a circular stretcher main rod sleeve which is sleeved in the middle of the stretcher main rod, the oxygen bag pad sailcloth bag faces downwards, two groups of cloth strip ropes are respectively arranged at the end heads of the oxygen bag pad sailcloth bag, and the two groups of cloth strip ropes are tied on the movable cross arm; when the foldable self-pressing oxygen bag pad stretcher is operated by two persons, one person carries the oxygen bag pad filled with oxygen, and the other person carries the stretcher main lever combination, after the stretcher main lever combination reaches a destination, the stretcher main lever combination is scattered, the two movable cross arms of the stretcher main levers are respectively pulled open, the other ends of the movable cross arms are respectively inserted into hinge shells of the movable cross arms of the other main lever, and pin screws of the cross arms are inserted and then locked by fishtail nuts; placing the unfolded oxygen bag pad into a canvas bag of the oxygen bag pad in the middle of the stretcher, and bundling the cloth straps on the main bar of the stretcher; sleeving an oxygen pipe on an oxygen bag valve, connecting the other end of the oxygen pipe with a nostril oxygen supply pipe of the sick and wounded, opening a regulating valve to supply oxygen to the sick and wounded, changing another oxygen bag when one bag of oxygen is used for half, changing the first used oxygen bag again when the four bags are used for half, and pushing down the oxygen bag; the half-bag oxygen is pressed by the body of the patient, so the oxygen bag can still maintain higher air pressure and can still supply oxygen normally.

2. The stretcher with foldable self-pressure oxygen bag pad as claimed in claim 1, wherein: the length of the oxygen bag pad is 1800-1900mm, the width is 550-650mm, the width is not less than 500-550mm after oxygen is filled, and a plurality of groups of cloth ropes are respectively arranged on the four sides.

3. The stretcher with foldable self-pressure oxygen bag pad as claimed in claim 1, wherein: the highest inflation pressure resistance value of the oxygen bag cushion is not less than 1.5-2kg/cm²。

4. The stretcher with foldable self-pressure oxygen bag pad as claimed in claim 1, wherein: the main bar of the stretcher is made of an aluminum alloy thick-walled pipe or a stainless steel pipe with the diameter of 40-45cm, and the bending stress is not less than 100-120 kg.

5. The stretcher with foldable self-pressure oxygen bag pad as claimed in claim 1, wherein: the length of the lifting handle is 35-40cm, and anti-skid screws are respectively arranged below the ends of the lifting handle.